<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        const url = "http://www.laoli.com?a=1&b=2&c=3";
        // const arr = url.split("?")[1];//[a=1&b=2&c=3]
        // //[[a=1],[b=2],[c=3]]
        // let obj = {};
        // arr.split("&").forEach(item => {
        //     const [key, value] = item.split('=');
        //     obj[key] = value;
        // })
        // console.log(obj);
        const res = url
        .split('?')[1]
        .split('&')
        .reduce((pre,cur) => {
            const [key,value] = cur.split('=');
            pre[key] = value;
            return pre;
        },{})
        console.log(res);
    </script>
</body>
</html>